FTDI USB TO SERIAL CONVERTER

A low-cost way to add usb capability to other microcontrollers or for Arduino. Use this to give your own breadboard for downloading sketches or USB capability for boot loading for Arduino.
RXD/TXD transceiver communication indicator
Includes over-current protection, using a 500mA self-restoring fuse
This board includes a DTR pin needed to auto-reset for Arduino when downloading to your device.